When you’re stuck on the beginning of your story, or stuck somewhere in the middle and you have no idea what to do or where to go, write the end. Start from the back and work your way forward.
If you have even a vague, rough idea of how you want your book to end or even if you have just a gut feeling, write it down. If you have no feelings at all, no clue whatsoever, make something up and go from there. Start at the end and work your way back. You may come up with something that will surprise you.
When you’re afraid of/reluctant to writing THE END because you think it’s not good enough or if you’re worried that your end won’t be your REAL end and you’re wasting your time, don’t think about it. Force yourself not to think about it. Or tell yourself you don’t care if you write crap.
Think about where you want your characters to end up, who you want to kill off, who you want to give the happy ending to. Then switch it up, or don’t. Do all the thought experiments. But most importantly, don’t censor yourself.
WRITE ALL THE THINGS.